Jar-fastener



(No Model.)

T. G. OTTERSON.

l JAR PASTENBR. No. 285,062. Patented Sept. 18, 1883. l

WITNESSES l/VVQVTOI? ZQM %ZMQ 6m d I I Afln;ney

NITED STATES A'IFNT 1 tries.

THOMAS G. OTTERSON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR OF ONEHALF TO JOSEPH WHARTON, OF CAMDEN, NEYV JERSEY.

JAR-FASTENER.

SPECIFICATION forming part of Letters Patent Nos 285,062, dated September 18, 1883.

Application filed March 31, 1883. (No model.)

T aZZ whom it may concern.-

Be it known that I, THOMAS G. OTTERSON, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Jar-Fastjars or other vessels, the object being to provide a fastener of simple and economical construction, designed for use with all classes of jars, cans, &c., adapted to be readily applied thereto in such a way as to secure the top or cover of the jar in a perfectly air-tight manner,

and also in such a way as to secure a rigid bearing for the fastener against the cover and jar to prevent breakage of the latter.

A further object of the invention is to provide devices for securing a cover to a jar so as to afford both a yielding valve and a rigid fastener, as will be 'fully described hereinafter.

A further object of the invention is to improve the details of construction of jar covers and fasteners,with a view of effectually guarding against the breakage of the jar and cover, and insuring a thoroughly air-tight attach o ment of the cover.

The invention consists in the improved fastener hereinafter fully described, and in the details of construction and combinations of parts hereinafter specified, and pointed out in 5 the claims.

In the drawings, Figure 1 represents a perspective view of a jar provided with my improvement. Fig. 2 is a perspective view of the fastener detached. Fig. 3 is a transverse 0 section on the line as w of Fig. 1. Fig. 4 is a horizontal sectional view across the arms of a central recess orbearing, e, h. ving acounter- 5o sink, a, andon its under side, opposite the latter, with a depending lug or enlargement,

6-, adapted to strengthen or re-enforcc the hearing 0.

F represents my improved fastener, consist ing of a semicircular body forming arms ff and the ends f f the latter being first bent inwardly and downwardly, as shown at f f and then horizontally, or nearly so,in opposite directions, to engage the beadsBB of the jar and present smooth round bearing-surfaces f f theretof The central portion of the fastener F is bent to form asemicircular loop,

G, as shown in Fig. 4:, around which is cast a support, H, having a circular opening or bearing, 71, to receive the upper end of a spindle, I, which is spread above the support, to secure it thereto. The under side of the support is formed of clutch shape, to present a catch, i, to engage the upper end of a spiral 7o spring, J, surrounding the spindle I. To the lower end of the latter is secured a disk or base, K, whose upper side is formed clutchshaped, to present a catch, k, to receive the lower end of the spiral spring J. The disk K has a bearing in the circular recess 0 of the cover, and its opening, 70, which receives the spindle or rivet I, is tapering from top to bottom, to correspond with the rivet I, whose lower end is spread to enter the countersink e of the recess 0, thus avoiding the necessity of. forming a shoulder on the lower end of the rivet; but, if desired, the spindle may be formed integral with the disk.

The operation of my improved fastening may be described as follows: After filling the jar the cover is applied, and the bent ends of the fastener F are engaged with the beads of the jar and partially turned. The jar is then placed in the boiling-receptacle. The yielding of the fastener at the central point of the cover will allow of the raising of the latter by the pressure of the gases generated within the jar and the escape of such gases, after which the fastener F is turned to its full extent upon 5 the beads of the jar, so that the arms f f will have a rigid bearing against the edges of the cover, thus guarding against breakage and insuring an absolutely airtight connection of the cover.

It will be apparent that the inclined clutchshaped surfaces of the support II and disk K obviate the necessity of filing or beveling the ends of the spring J, and serve to securely hold the latter in place.

An important advantage of the improvement is found in the bending of the ends of the fastener F in the manner shown and described, as the bearing-surfaces of said ends are smooth and round, thus obviating all danger of breakage of the glass, and adapting the improvement for use with the inclines or beads of blow-over jars.

I do not limit myself to the construction hereinbefore described, as my device is sus ceptible of many modifications in form and construction. For instance, as illustrated in Fig. 5, instead of casting the support If upon the fastener, the latter may be looped upon it self, as shown at L. In this instance the lower loop, Z, will form a stop or bearing for the up per end of the spring, the spring being bent to bear at its end against the stop thus formed or the end may be fastened to the stop, if desired; or, as shown in Figs. 6 and 7, the spring and spindle and their support H and disk K maybe dispensed with and the central portion of the fastener be downwardlybent, as shown at M, Fig. 6, or looped, as shown at N in Fig. 7, the resiliency of the fastener in these instances serving to operate the device. Other slight alterations and modifications may be resorted to without departing from the spirit of my invention, and I reserve to myself the right to make all such variations in form and construction as may properly fall within the scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The combination, with a jar provided with inclined beads or threads, of a cover and a fastener whose ends are bent in opposite direetions and to correspond to the pitch of said threads or beads and engage therewith, and whose central portion is adapted to yield, substantially as set forth.

2. The combination, with a jar provided with inclined beads or threads, ofa cover and a yielding fastener whose ends are bent in opposite directions and to the inclination of the beads, so as to engage said beads or threads, the arrangement being such that when the fastener is turned sufficiently it bears against the outer edges of said cover, substantially as set forth.

3. The combination, with a jar provided with inclined beads or threads, of a cover and a yielding fastener whose ends are bent inwardly and in opposite directions to the same pitch as the bead and to the curve of the jar, whereby their sides are presented to the jar, and whereby, when sufficiently turned, a rigid contact between the said fastener and the cover is effected, substantially as set forth.

9 amma 4. The combination, with a jar provided with inclined beads or threads, of a cover provided centrally with. a recessed bearing or concavity and a fastener whose ends are bent to engage said beads, and whose central por tion is provided with a perforation or bearing for one end of a vertical spindle, the opposite end of the latter being secured to a disk or base adapted to bear in the countersunk bearing of the cover, and a coil-spring surrounding said spindle and secured between the-fastener and disk, substantially as set forth.

5. The combination, with a jar-cover provided with a central recess or bearing, of a fastener whose ends are bent to engage the threads of a jar, and whose central portion is looped and provided with a bearing for the head of a spindle, the under side of said bearing being adapted to engage one end ofa coilspringsurrounding the spindle, the lower end of the latter being secured to a disk or base, whose upper side is adapted to engage the opposite end of said coil-spring, substantially as set forth.

6. The combination, with a jar provided with inclined beads or threads, of a cover having a central bearing and a fastener whose ends are bent to adapt them to engage said threads, and whose central portion is bent to form a loop, around which is cast a support or bearing adapted to receive the upper end of a spindle, and provided with a notched or clutch-shaped lower surface to engage a spiral spring surrounding said spindle, the lower end of the latter being rigidly secured to a disk or base supported in the bearing of the cover, and whose upper surface is notched or clutclr shaped to receive the lower end of said spiral spring, substantially as set forth.

7. The combination, with the fastener, of a spindle whose upper end is supported in a bearing formed centrally upon the fastener and a disk or base secured to the lower end of the spindle, and a spiral spring surrounding said spindle, with one end secured to the bearing and the other to the disk, substantially as set forth.

S. The combination, with the fastener having a central support cast thereon, whose under side is notched or of clutch form, of a spindle projecting through said support and provided with a clutch-shaped disk at its lower end and a spiral spring surrounding said spindle and bearing against said support and disk, sub stantially as set forth.

9. The combination, with a jar provided withinclined beads or threads, of a cover having a circular recess or bearing, and a fastener whose ends are bent inwardly and then nearly horizontally in opposite directions, to engage said beads and present smooth bearing-surfaces thereto, and whose central portion is provided with a support cast thereon and provided with a catch or clutch surface,a spindle projecting through said support, a disk or base secured to said spindle and having bearing within the circular recess of the cover and provided With a catch or clutch surface, and a fiOELfiOll in the presence of two subscribing witspiral spring surrounding said spindle and nesses. held by the clutch-surfaces of the support and disk, which latter are formed to correspond 5 to the pitch of the coiled spring, substantially Vitnessesz as set forth. ALBERT MATHEWS,

Intestimonywhereoflllave signed this speci- ANDREW ZANE, J r.

THOMAS G. OTTERSON. 

